| English name | CAS# | Molecular formula | 
| Entecavir | 209216-23-9 |  | 
| Famciclovir | 104227-87-4 |  | 
| Ritonavir | 155213-67-5 |  | 
| Oseltamivir hydrochloride | 204255-09-4 |  | 
| English name | CAS# | Molecular formula | 
| Entecavir | 209216-23-9 |  | 
| Famciclovir | 104227-87-4 |  | 
| Ritonavir | 155213-67-5 |  | 
| Oseltamivir hydrochloride | 204255-09-4 |  |